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    Real-world effectiveness of avelumab, pembrolizumab, and enfortumab vedotin in patients with advanced urothelial carcinoma with squamous differentiation (ARON-2EV)
    (Springer Science and Business Media LLC, 2026)
    Mollica, Veronica
    ;
    Massari, Francesco
    ;
    Fujita, Kazutoshi
    ;
    Giannatempo, Patrizia
    ;
    Grande, Enrique
    Introduction: Avelumab, pembrolizumab, and enfortumab vedotin (EV) demonstrated efficacy in mUC following platinum-based chemotherapy. However, real-world data in patients with urothelial carcinoma with squamous differentiation (UCSD) are limited. The aim of this study is to assess the real-world clinical outcomes of avelumab, pembrolizumab, or EV in mUCSD patients. Materials and methods: The ARON-2EV study is a retrospective, international, multicenter analysis in patients with mUC treated with avelumab, pembrolizumab, or EV across 79 centers in 21 countries. Patients were divided into three cohorts: 1 (avelumab), 2 (pembrolizumab), and 3 (EV). Primary endpoints were overall survival (OS) and time on treatment (ToT). Secondary objectives included evaluating clinical factors associated with outcomes and exploring the impact of UCSD histology on response to therapy. Statistical methods included Kaplan–Meier estimates, log-rank tests, Fisher’s exact and chi-square tests, and Pearson’s correlation coefficients. Results: A total of 1918 patients, 1696 with advanced pure UC (pUC) and 222 with mUCSD (36 in cohort 1, 111 in cohort 2, and 75 in cohort 3), were included. Median OS was shorter in patients with UCSD compared to patients with pUC histology in the three cohorts (1: 13.0 vs 26.8 months, HR 2.66, p = 0.003; 2: 10.2 vs 18.5 months, HR 1.52, p = 0.008; and 3: 7.6 vs 13.1 months, HR 1.68, p = 0.011). Median ToT was shorter in patients with UCSD compared to patients with pUC histology in cohort 1 (3.5 vs 5.6 months, HR 1.57, p = 0.044) and 3 (7.6 vs 13.6 months, HR 1.83, p = 0.005) but not in cohort 2 (3.7 vs 4.7 months, HR 1.19, p = 0.177). Response to therapy was negatively correlated with UCSD histology in cohorts 2 (correlation coefficient 0.094, p = 0.008) and 3 (correlation coefficient 0.107, p = 0.021), while response to avelumab was not correlated with UCSD (correlation coefficient 0.072, p = 0.263). Conclusions: UCSD is a histology with a poor prognosis and response to treatments compared to pUC. Treatments activity and effectiveness in divergent differentiations should be addressed in dedicated prospective studies. ©The authors ©Springer.
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    Pembrolizumab plus Lenvatinib in patients with metastatic Renal Cell Carcinoma: real-world evidences from the international ARON- 1 study
    (Springer Science and Business Media LLC, 2025)
    Porta, Camillo
    ;
    Massari, Francesco
    ;
    Taha, Tarek
    ;
    Grande, Enrique
    ;
    Bourlon de los Ríos, María Teresa
    Background: Pembrolizumab plus lenvatinib is a treatment option for metastatic Renal Cell Carcinoma (mRCC). In the ARON-1 study we investigated we the real-world experiences gained from the use of this combination for mRCC. Methods: We retrospectively investigated real-world clinical outcomes of mRCC patients receiving pembrolizumab plus lenvatinib within the ARON-1 study. Overall survival (OS) was calculated from the start of pembrolizumab plus lenvatinib to death for any cause. Progression-Free Survival (PFS) was defined as the time from the start of pembrolizumab to progression or death from any cause. Duration of response (DoR) was defined as the time from the start of pembrolizumab to disease progression or death, whichever occurred first, in patients who achieved complete remission (CR) or partial response (PR). Overall Response Rate (ORR) was defined as the proportion of patients who achieve a CR or PR per RECIST criteria. Adverse events were retrospectively collected from electronic and paper charts and categorized by the Common Terminology Criteria for Adverse Events (CTCAE) v5.0. Results: Overall, we included 202 mRCC patients treated with pembrolizumab plus lenvatinib. The median follow-up time was 15.1 months. The median OS was not reached (NR), with a median PFS of 25.6 months and an Overall Response Rate (ORR) of 59%. The median Duration of Response (DoR) was 26.2 months. G3-G4 adverse events (AEs) were observed in 92 patients (46%), with hypertension being the most common AE (13%). Conclusions: Pembrolizumab plus lenvatinib is an effective and tolerable treatment for mRCC also in the real-world setting. ©The authors ©Springer Science and Business.